I am Beeman hear me Buzz!
Why SSDs are obsolete
SSDs were built because there are billions of SATA and SAS disk ports available. Filling some of those ports with SSDs promised to be quite profitable - a promise fulfilled in the last 5 years.
But now that non-volatile memory technology - flash today, plus RRAM tomorrow - has been widely accepted, it is time to build systems that use flash directly instead of through our antique storage stacks. The various efforts to decrease latency - SATA 3, NVMe, and others - still add layers of software between our applications and our data, creating complexity and wasting CPU cycles. A recent PhD thesis got me to thinking about this.